Subversion Repositories Applications.gtt

<?php
/*
 * This work is hereby released into the Public Domain.
 * To view a copy of the public domain dedication,
 * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
 * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
 *
 */

require_once dirname(__FILE__)."/Graph.class.php";

/**
 * All patterns must derivate from this class
 *
 * @package Artichow
 */
abstract class awPattern {

        /**
         * Pattern arguments
         *
         * @var array
         */
        protected $args = array();
        
        /**
         * Load a pattern
         *
         * @param string $pattern Pattern name
         * @return Component
         */
        public static function get($pattern) {
        
                $file = ARTICHOW_PATTERN.DIRECTORY_SEPARATOR.$pattern.'.php';
        
                if(is_file($file)) {
                
                        require_once $file;
                        
                        $class = $pattern.'Pattern';
                        
                        if(class_exists($class)) {
                                return new $class;
                        } else {
                                awImage::drawError("Class Pattern: Class '".$class."' does not exist.");
                        }
                
                } else {
                        awImage::drawError("Class Pattern: Pattern '".$pattern."' does not exist.");
                }
        
        }
        
        /**
         * Change pattern argument
         *
         * @param string $name Argument name
         * @param mixed $value Argument value
         */
        public function setArg($name, $value) {
                if(is_string($name)) {
                        $this->args[$name] = $value;
                }
        }
        
        /**
         * Get an argument
         *
         * @param string $name
         * @param mixed $default Default value if the argument does not exist (default to NULL)
         * @return mixed Argument value
         */
        protected function getArg($name, $default = NULL) {
                if(array_key_exists($name, $this->args)) {
                        return $this->args[$name];
                } else {
                        return $default;
                }
        }
        
        /**
         * Change several arguments
         *
         * @param array $args New arguments
         */
        public function setArgs($args) {
                if(is_array($args)) {
                        foreach($args as $name => $value) {
                                $this->setArg($name, $value);
                        }
                }
        }

}

registerClass('Pattern', TRUE);
?>